Golf-club.



UNITED sTArnsrAr NT OFFICE.

CHARLES JACOBUS. OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOB TO A. SPALDING & BROS, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

GOLF-CLUB.

T 0 all whom it may concern:

Be it known that I, CHARLES Jacon'os, a citizen of the United States, residing in the city of Springfield, in the State of Massachusetts, have invented certain new and useful Improvements in Golf-Clubs, of which the following is a specification, refer' ence beil g had to the accompanying drawing, forming a part hereof.

This invention relates to golf clubs having heads of wood, such as drivers and brassies, and it has for its object to improve the driving power of such clubs and also to increase the durability thereof. In such clubs the grain of the wood is generally substantially parallel with the greatest length of the head, or atrright angles with the direction of the stroke, and the weight which is sometimes added to the head is encrally applied to the rear side of the head or is inserted in the head from the rear.

In accordance with this invention a strik ing body is inserted in the head from the front or striking side of the head and, if the material of which such striking body is forlned be properly selected, it may also serve as the weig it which necessary to be added to the wooden head. Preferably, however, such striking body is itself of wood, either of the same kind as the head or of a different. kind, and is in serted in the head with its grain substantially parallel with the direction of the stroke, or at right angles. to the grain of the head itself, it having been found that greater ,driving force is thus secured and that the club thereby better withstands long and hard usage. Moreover, it found desirable in practice to form such striking body in three parts, two cylindrical but separated parts being first inserted in the head, in holes bored therein from the front or striking face, and a third cylindrical part, of less length being afterward inserted in a hole which is borer into the head from the front orstriking side or surface, such hole also cutting into the two parts previously inserted, the third hole being preferably of less depth than the first two holes, so that. the third part. bears at. its inner end against shoulders formed ()Il tllO other two parts.

The invention will be more fully explained hereinafter with reference to the is sometimes Specification of Letters Patent. Application filed September 30, 1909.

arated, as indicated in Patented Nov. 8, 1910. Serial'No. 520,252.

accompanying drawing in which it is illustrated and in which- Figure 1 is a view in front elevation of a golf club head with two parts of the striking bodyinserted. Fig. 2 is a similar view with the third part of the striking body inserted. Fig. 3 is a view partly in section on the plane indicated b the line 33 of Fig. 2.

The head a of the improved club may have any suitable shape and may be made of any suitable wood, the grain thereof running in the general direction of the length of the head, or at right angles to the direction of stroke, as indicated in the several fi ures. From the front or striking face I;

of the headthere is then inserted in the head the striking body which comes in contact with the ball. This striking body may be of any suitable material, but is preferably of wood, either of the same kind as the head or of some other kind. The material of .which the striking body is composed may be selected solely with reference to the character of the blow which is delivered to the ball and with reference also to the proper weighting of the head, it being possible to employ for the itself. If of wood, the striking body is so formed and so inserted in the head that its grainshall be generally parallel with the direction of the stroke or at right angles to the grain of the head, itbein found that the driving power and the the club are thus increased.

'[t may generally-have any but is preferably made up which are formed suitable forin, of three parts and. placed in the head as purpose a much denser and hea "181 wood than 15 employed for the head urability of will now be described. In the head 6 are bored from the: front or striking surface two cylindrical holes 0 and 0', in Whlch are inmrtcd cylindrlcal plugs or parts cl and d,

with the grain running lengthwise thereof,

so that when placed, the grain shall be gencrallj. parallel' with the direction of the stroke or at right angles to thegrain of the head. These two holes are somewhat sep F'g. l, and are of such depth as to extend a good part of-the way through the head. as indicated inI ig.

formed in the head with its axis preferably 1). Then a hole 6, preferably of a somewhat greater diameter than the holes (I and d, is

midway between the axes of the'holes d and d, the holee being formed partly in the wood of the head itself and partly in the wood of the two plugs or parts d and d,

and preferably of less de )th than the holes 61 andd, so-that shoulcers f and f are formed on the plugs or parts (1" and (Z. In

this hole 6 there is then inserted a. plug or part 9, also with its grain substantia ly parallel with the direction of the stroke and therefore parallel with the grain of the parts (l and (Z and at right angles with the grain of the .he'ad. The striking body, whether formed inoue piece or in severalpieces, described, fits closely in the recess formed therefor in the head and may be held in place by glue or cement. If desired, a screw or pin it may also be inserted from the bottom or underside of the head into the plug or part 1. When the striking body is formed of three parts as shown and described, with the central part bearing against shoulders on the two outer parts, the central parts of the head.

part c secures the other two parts cl and d in place, and the base of the central or prin-' cipal striking part is thus extended son that the force of the blow is distributed over a wider area.. Also, by giving the plugs or parts a cylindrical form in cross-section, the rincipal' of the arch is embodied, and the orce of the blow is better distributed to all In my approved that the material 0 the head'extends upon all sides of the plugs referred to except their tion of,a head whichis not weakene by the ara te ends which lie in the strikin face of the head, from which .it results t at the force .due to a blow is transmitted to the inner (ary openin formed in it other than those upon its stri in face,'which force is distributed outward. rom the interior of the head in various directions, the force dueto the blow being thus absorbed by a head whichis solid except for the openings provided for the plugs. The provision of several individual plugs renders. possible a yielding action among them considered as a whole, and thus avoids the splittin of the insert made up "p ugs as compared with their consi 'erable length makes it-Iunlikel that the individual lu .will split, he features enumerated wdi e reb the central plu is sup 'orted in part by t e side plugs an in part y the material of the head itself secures a more effective distribution of the forces due to 'a blow upon the striking face to the in- ,teribr of the head, and, .finally, the circular cross-section of the plugs and the manner in which they are inserted into the-head as explained enable the head to be formed at a minimum of expense-and bymechanical processeswhich secure close joints between the parts at a 0119 cub a willbe seen plugsfand t e small area of these it will be understood. that the form andand into the interior ofsaid head, and with a third recess located between and eommunicating'wlth both said first mentioned recesses and extending also from said striking.

face into the interior of said head; and three plugs formed from woodand one .located within each of said recesses and the outer ends of which terminate in the striking face aforesaid, the grain of saidplugs extending longitudinally. thereof and consequently substantially at right angles to the striking surface of said head. v

2. A golf club having a head of wood and two recesses spaced apart from one another and extendin from the front orstriking face of the ead" in a direction substantially .at rightangles to said strikin face and into the interior ofsaidhead, and with a third recess located between and communicating with both said first mentioned .recesses and "extending .also from said striking face into the interior of said head; and three plu s formed from wood an'd'one located wit in each of said recesses and the other-ends of which terminate in the striking face aforesaid, the two outer plugs beingeach provided with a shoulderagainst which the inner-end of theintermediate plug I abuts, and the ing longitudinal y thereof an substantially at right angles to, the striking surface of said head. I

3.*A golf club having a head of wood and two recesses spaced apart from one another and extending from the front or'striking faceof the head in a direction substantially at right angles to said striking face and into the interior of said head, and'with a third recess located between'and comniunicatin with both said first mentioned recesses an exteuding also from said striking face into the interior of said head; and three plugs one located within each of said recesses and the other ends of which terminate in the striking face aforesaid, the two outer plugs being each provided with a shoulder against which the lnner endof the intermediate plug abuts.

rain of said dplugs extendconsequently 4. A golf club having a head of wood and 1 two recesses spaced apart from one another minimumof effort and exand extending from the front or striking face of the head in a direction substantiallydo a ing t angles to mid Sil'lli ll face and into fi terior of suid head, g

flormed by boring a hole circular in said recesses becroae-sectioninto said head, and with a third recess located between and communicati with both said first mentioned r s am: a: all

extending also from said striking face into the interior of said head but to a lesser distance than said two first mentioned recesses, said third recess being formed by boring a hole circular in cro and thereb between said two and a serted into, said shoulder is formed adjacent the bottom plugs located one i! ss-section into said hen'd cuttm away the rst mention eflllaccleftrecesses rtion of two plugs previouslv inrocesses, and whereby a upon each of said p of said third recess; two 1 each of said first menstantially at right angles tot tioned recesses asaforesaid, and having each a shoulder as aforesaid; and a third lug circular in cross-section and located within said third recea ind the inner end of which rests upon said shoulders; the outer. ends of all of said In in the striking terminating face of said end and and plugs being formed from wood with the gram extending longitudinally thereof and co uently subie striking surface of said head.

This specification si led and witnessed this 25th day of Septem r A.-D. 1909.

CHARLES J ACOBUS.

Signed in the presence of- J. Fmcmux Wooo, (Lanes-r S. Jason's.

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